5x Exell A19PX 4.5V Alkaline Battery V19PX 531 RPX19 A19PX EPX19 , " style="align:center"> Exell Batteries not only provide consumers with high efficiency, long-lasting performance, they also function as Compatible With batteries for an array of common and unique applications. Ranging from vintage camera equipment to sophisticated testing equipment, Exell Batteries can meet the needs of all consumers.Exell Battery is one of the few product lines Proudly Assembled in the USA.Made with Alkaline cells, Exell Batteries will last longer and offer consumers excellent reliability.The A19PX or 531 is an unusual cell often used in older Polaroid cameras. It is a cylindrical battery with one mini snap connectors at each end (the same size of mini snap found in the popular 9Volt PP3 battery).The older Polaroid cameras models: 100, 101, 102, 220, 225, 230, 240, 250, and 340 use one PX19 or No. 531 (4.5 volt) alkaline battery.• Type: Alkaline. • Voltage: 4.5 V.• Diameter: 16.8 mm. • Height: 58.3 mm. Also known as: V19PX / 531 / RPX19 / A19PX / EPX19 / 3LR50 / 1307AP.SpecificationsOutput Voltage: 4.5V, Chemistry: Alkaline, Height: 58.3mm, Diameter: 16.8mm, Country of Manufacture: U.S.A.A19PX. REPLACES: V19PX, 531, RPX19, EPX19, 3LR50, 1307AP. FOR USE WITH: Polaroid: 101, 355 Land Camera, Automatic 250, Camera Model 100, Camera Model 101, Camera Model 102, Camera Model 220, Camera Model 225, Camera Model 230, Camera Model 240, Camera Model 250, Camera Model 340.